SCP-XXXX is to be contained on location surrounded by 17.6 meters of Barbed wire fencing to deter intruders.

These containment procedures are specific to a fault. Nowhere else in your article does 17.6 meters, or barbed wire, hold any significance. This writing implies that should either the containment perimeter be, say, 17.7 meters or made of concrete walls instead of barbed wire, then containment will fail. As this is a storm drain in the middle of a forest, it seems a more efficient containment procedure would simply be establish a secure, armed perimeter since it's already part of the local culture. If you want to get fancy, you could also go into disinformation campaigns disproving any local legends about it and so on. Barbed wire is improperly capitalized but as I said I don't believe that specific word has a place here. "To deter intruders" is unnecessary: the special containment procedures are assumed to have specific purposes and considering this is technically in open view, readers would understand a security perimeter's purpose.

A minimum of 4 security personnel

Again, this is mostly specific to a fault. 4 security personnel holds no significance in the rest of the article and feels like an arbitrary number you pulled out. Since the main focus of this sentence is reporting -1, I would recommend just going straight to "security personnel are to…"

The Storm drain has been the center of local lore since the late 1970's due to it's ominous presence and bearing the words "Gates of hell" in spray paint on the inner wall.

"ominous presence" has no clinical tone whatsoever and has no place in this SCP article. Remember, even if the town is deathly afraid of this thing, even if the Foundation was deathly afraid of this thing, the official documentation about this SCP would be professional and detached. Having a spray painted message doesn't really contribute to the creation of an urban legend. I would recommend simply stating that the message is there instead of saying that its one of the two reasons this tunnel is part of local lore.

despite it's local acclaim it did not come under the attention of the foundation until ██/██/1993 when reports of a red eyed figure beckoning drivers towards the forest that houses SCP-XXXX began circulating.

Despite its local acclaim, it did not come attract the attention of the Foundation until ██/██/1993 when reports of a red-eyed figure luringpeople towards the forest that houses SCP-XXXX began circulating.

Watch out for spelling and grammar errors.

Upon investigation The storm drain was discovered approximately 45 yards into the forest.

Don't use yards. Use metric units.

further exploration into SCP-XXXX has been restricted to D-class Personnel by the order Of O5-█ and is expected to begin on 11/16/████

"further" needs to be capitalized. However, the more pressing matter is this makes absolutely no sense. Why did the Foundation not default to D-Class testing with this thing? They clearly didn't understand its effects but still sent researchers and agents wandering in? They would have started with D-Class. And why is O5 concerned with experimentation? O5 handles the Foundation's global affairs and nothing written about this SCP gives it any global or critical significance.

I think the main problem with this article is that there's too little…and also too much. If we analyze your test logs, this SCP alters reality(reverses people who walk inside), alters time(time inside of tunnel can change), teleports people and abducts people. There's also the matter of the red-eyed figure. However, nothing is done with this. The description is bare bones and focuses almost entirely on a lackluster backstory as opposed to the various research that would have been done with this thing. I think you should lock down exactly what you want this SCP to be and do before focusing on revisions, because right now it feels a bit all over the place. Now, as that's conceptual development, I recommend getting the base idea polished up in the Ideas and Brainstorming Forum before you try fixing the draft. Go to that forum, post a quick summary of the concept you want to write up and the story(if present) you’re trying to tell (don't link the draft unless someone asks). The reviewers there can help you make pre-existing elements more interesting, chop out elements that aren’t interesting, and perhaps even propose new elements that improve the quality of your article. Good luck.